663252670 has 8 divisors (see below), whose sum is σ = 1193854824. Its totient is φ = 265301064.

The previous prime is 663252641. The next prime is 663252701. The reversal of 663252670 is 76252366.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33162624 + ... + 33162643.

It is an arithmetic number, because the mean of its divisors is an integer number (149231853).

Almost surely, 2^663252670 is an apocalyptic number.

663252670 is a deficient number, since it is larger than the sum of its proper divisors (530602154).

663252670 is a wasteful number, since it uses less digits than its factorization.

663252670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66325274.

The product of its (nonzero) digits is 90720, while the sum is 37.

The square root of 663252670 is about 25753.6923566311. The cubic root of 663252670 is about 872.0867115957.

The spelling of 663252670 in words is "six hundred sixty-three million, two hundred fifty-two thousand, six hundred seventy".